CONICAL WASHER (P/N 7n4) - New Surplus
P/N: 7n4
Category: Washers
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 4 Available |
Product Description
The 7n4 is a conical (Belleville) washer that maintains bolt preload in aircraft fastener assemblies during vibration and thermal cycling. This spring-profile washer supplies axial tension under the bolt head or nut, preventing fastener loosening in critical joints. Typically manufactured from spring steel, the conical shape provides load retention across temperature variations and operational stress.
Install with proper stacking orientation per aircraft maintenance manual specifications. Used in structural bolts, engine mounts, and control surface attachments where preload stability is essential.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the CONICAL WASHER (P/N 7n4)?
The 7n4 is a conical (Belleville) washer that maintains bolt preload in aircraft fastener assemblies during vibration and thermal cycling. This spring-profile washer supplies axial tension under the bolt head or nut, preventing fastener loosening in critical joints.
What conditions is the 7n4 available in?
The 7n4 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
How do I get pricing for the 7n4?
The 7n4 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.
Do you offer expedited shipping for the 7n4?
Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.
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